Lanthanum phosphate as catalyst in the reaction of 5-HMF formation Ika F. Ulfindrayani, Agustino Zulys, Fredy Kurniawan, Qurrota A’yuni, Hilfi Pardi and Irmina K. Murwani BIO Web Conf., 70 (2023) 03009 Published online: 06 November 2023 DOI: 10.1051/bioconf/20237003009